Stop writing sloppy prompts.
Start compiling them.
Echo is an in-DOM prompt compiler for ChatGPT, Claude, and Gemini. It intercepts raw conversational thought dumps, isolating intent, promoting negative guardrails, and stripping attention-diluting noise before the model processes your tokens.
Noise Elimination
Conversational fillers like “I mean”, “you know”, and “and stuff right” consume critical attention heads and bias the LLM toward casual, unfocused outputs. Echo systematically purges filler while preserving 100% of the underlying intent.
Negative Guardrails
When humans write negative constraints like “Don’t write code yet” or “No third-party libraries” inside long paragraphs, models frequently ignore them due to recency bias. Echo hoists negative constraints into high-priority guardrail directives.
Intent & Deliverable Separation
Multi-sentence prompts often bury questions inside speculative thoughts. Echo extracts every explicit requirement and inquiry into numbered deliverables, forcing the model to address each point sequentially without skipping edge cases.
2. Latency profile comparison against sub-second SLAs
3. Database requirement analysis for prompt cache persistence
Test the compiler live
Type or paste any messy human thought dump below. See how Echo decompiles intent, extracts negative constraints, and formats an airtight prompt contract.
Install Echo in 30 seconds
No account required. Operates 100% locally in your browser with zero data tracking.
Download Package
Download the unpacked extension package directly from this page and extract the zip archive to any folder on your computer.
Open Extensions Tab
In Google Chrome, Brave, or Edge, visit chrome://extensions and switch on the Developer mode toggle in the upper right.
Load Unpacked
Click Load unpacked, choose the extracted Echo directory, then open ChatGPT, Claude, or Gemini and press Alt+E.
Why standard prompting fails
How Echo compares to unassisted prompting and generic string-appending add-ons.
| Capability | Raw Human Typing | Generic Add-ons | Echo Prompt Compiler |
|---|---|---|---|
| Decompiles Stream-of-Consciousness | No (Produces hallucination vectors) | Appends static strings ("be concise") | Yes (Extracts intent, tasks, and bounds) |
| Negative Constraint Enforcement | Frequently violated due to recency bias | None | Promotes to Top-Level Constraints |
| In-DOM In-Chat Integration | Standard textarea input | Bulky sidebar iframe | Native In-DOM Floating Pill & Alt+E |
| Privacy & Data Collection | Hosted on remote cloud logs | Telemetry & prompt tracking | 100% Private (Local In-Browser Pipeline) |
| Execution Latency | Zero | 2-4 seconds | Sub-Second < 500ms |